Press for forming briquettes



May 15, E923. w

J. RoL l PRESS FOR FORMING BRIQUETTES Filed June 50 1920 3 Sheets-Sheet1 @Wifi/MMM@ www/mw AMM l l y May l5, 1923.

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PRESS FOR FORMING BRIQUETTES Filed A.June 30 3 Sheets-Sheet 2 May 15,11923. 3,454,906

l J. ROL

PRESS FOR FORMING`BRIQUETTES- 'Filedune su 1920 s'shwts-smet 5 PatentedMay 15, 1923.,

narran sraras .man nn'or., or LYON, FRANCE.

PRESS non romaine BRTQUETTES.

Application filed .Tune 30, 1920. Serial No. 393,151.

(GRANTED nimma THE PROVISIONS or THE ACT or Mairena 1921, 211v STAT. L.,1313.)

To all 'whomit may concern.' n

Be it known that I, JEAN ROL, a citizen of the French Republic, andresident of Lyon, Rhone, France, have invented cer- The invention win beanyA described:

with reference to the accompanying drawmgs.

Fig. 1 shows the arrangement in elevation `following a longitudinalSection through a vertical plane passing through the axis of themachine.

Fig. 2 is a plan of the machine. Fig. 3 is anvend view Showingthe'method of actuating the table. Fig. 4 Shows the valve casing of thehydraulic cylinder.- Y

This press consists essentially of a double base plate a, the two partsof which are symmetrical and designed to support all the parts of themachine.

A crank shaft carries at each of its ends a gear wheel 0 receivingmovement from pinions d lixed on the shaft 7 at the rear of the baseplate, which receive motion from a motor or the like.

shaft b is articulated on a lever z., which is :Eulcrumed on a shaftfixed on the two pedestals j rigidly mounted on the base plate c.

The upper pressing plunger 7c is articun lated at Z on the lever 72.; itis guided between two Slides m, one of which, (thele'ft) is bolted on tothe pedestals y', and the other (the right) forms part of a doublepedestal 'n aiiixed to the pedestals j and supportedby a ring t on thetable of the press.

A crank shaft o articulated on the principal lever z passes through thecentrel of A connecting rod g actuated by the crank table p carrying themoulds, and is pivotally connected to the lower lever g.

At the right end of the lever 7l. is pivoted an extractor r, workinginguide pieces afixed to the pedestals n.

Below the lever h is arranged a table p provided with a number ofsockets (in practice 10 to 12) rotating about a ring t and `supported bya circular piece u heldin position by the extensions o fixed to thepedestals y', and by the `small pillars x fixed to the double base a.

' A Surface bearing y is interposed between the table `p and its supportu, which serves as a track `for it to roll on and reduce-the 'wear andtear of the machine. Below the to fit the convex part of the lever g tol"allow the rotation of the lever about its axis a.

On the lever g fixed at C the lower pressure plunger D which isarticulated and fixed on the lever, in the same yway the lever is ixedand articulated onthe, pistonof t e press.

by the shaft E engaging in a small` wedge von the shaft F carrying acage Gr which is engaged with the said wedge.

The shaft F which has a vertical movement works in two `guide pieces Hone fixed y y y -8o The left end of the lever g is terminated* to thebase plate a and theother to the v pedestal Two springsv I supported onthe' lower guide piece H and held in tension, are traversed by the rod Fwhich-holds them in position against the guide piece H by means of tworegulating screws Jf screwed on the rod F to allow of regulation 'of thetension of the springs.

A Casing K Vor' a double valve with inlet ,L and an exhaust M is ixedonthe hydraulic cylinder' N and communicatesv with y the latter byl anorifice O; it carries an exhaust orice Q.

.To assure the convenient rotary movement of' the table,la wall R boltedto the base plate a carrying a bracket S in which is mounted a verticalshaftv T, Vvcarrying worm wheelU taking with it the worm V,

given motion by the wheel X which receives its motion from the wheelv Zfixed on to the extension of the crank-shaft` and the pinion wheel l/V,fixed on the shaft of the main pinion X or by any other suitabletransmission, flexible or rigid.

A cam 1 is keyed on the vertical shaft T and communicates the movementto the table by means of the groove 2 into which successively enter andleave the cylindricalA rollers 3, fixed on the shafts which are carriedon the table.

rlhe shaft T isl held in its upper position in a bearing not shown inthe drawings. The said bearing is part of the casing of the distributorwhich may be of any suitable type, and of which the plates, not shown,serve to direct the material into the sockets of the table, and arefixed on the extension of the shaft T. i

After the description of the press and the examples of the drawings, itis easy to see how the apparatus works.

At the beginning of the movement (the crank shaft being to the left andforming with the horizontal an angle of about 15) thepressure plungers7s and D, also the extractor block "f are out the sockets of the tablep.

-One of the vrollers 8 of the table is engaged in the acting part of thegroove of the cam l, and the table p driven by the cam and turns aroundthe ring t.

The crank shaft continuing its movement clockwise the pressure plungersenter the l sockets of the table j). J ust at this moment,

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one of the rollers 3 which by the calculated movement of the cam l, hasreceived an initial speed (o1), arrives at a final speed g/(ofzO) in thenonoperating part of the cam, caused by a circular groove formingacontinuation of the operating groove and is held, and consequently thetable, in the position which it should occupy during the working of thepressure plungers. The movement continues until the moment when the rodg is vertical also the crank shaft (maximum point of compression). |Thepressure plungers work in the socket as follows T he upper plunger 7cfollowing the movement of the lever 7L descends into the socket,

the lower plunger D worked by the lever g,

which under the action of the crank o, rotates about its axis e, risingin the socket.

In this movement of rotation of the lever gin consequence of theapplication of the lower ypart on the beam B of the hydraulic piston A,the axis a constitutes a fixed axis of rotation (the incompressibilityof .the water in the cylinder N assuring the fixture ofthe said axis e,because the interior prese sure applied to the outlet valve of thecasing of the valve is calculated to 'be the same as that imposed forthe compressing of the Lasagne @tiring this period of movement theextractor plunger ff' penetrates into the socket brought in front of it,and removes the compressed briquette and forces it below the table nwhere it falls on to a conveyor which takes it to any predeterminedplace.

The movement continues in the same direction after the passage of thevertical position of the crank corresponding tothe vertical point of thecrank shaft, the lever 7L oscillates on its immovable axis r' and itsleft part descends whilst the right is raised. The pressure plungers 7cand D also the extractor plunger, are removed from the socket leavingthe table p free to make a fresh rotation.

During` this period one ofthe rollers 3 of. v

able because of the connection of the pedestals to the base a, thereaction acts on this axis at the moment of compression of the powderedmaterial tending to lift this axis a', which tends also to dragv away inan upward direction the pedestals which in their turn tend to raise thebase a (which is absolutely impossible). whatever movement thisl basecould. have, this said movement (whatever it maybe) would not beprejudicial to the. workingof the press because the table carrying theBut if impossible socket is supported on the pedestals j andthe rigidpillars fc fixed on the base a would sustain an angular movement, theforcje and symmetry would be the same, following a common axis, and the.whole wouldmove or oscillate together. the i of the head of the machinealso applies to allv the parts and would be displaced absolutelyproportionally. The vertical shafts of the pressure plungers andextractors in every state would always fit exactly into the sockets,during the-,comprestion strokes. y

lvforeover, in the continuation of movement the lower spring l of therod F actuated by the end of the lever Q is detained and helpe( by thisdetention to the rotation of the lever Q about its axis .a by which acouple is formed by the tension of the said That which applies tovspring and the pull of the crank o. This facilitates the oscillation ofthe lever g. Then after the complete detention of the lower spring I,the initial pressure of the said spring is greater than the friction ofthe hydraulic piston A on the walls of its cylinder N, the axis E beingthe axis of oscillation of the lever Q which enters with the piston Awhich then works as an ordinary air pump piston.

This phenomenon of aspiration which is of no practical value in thenormal working, becomes of great use when the material is brought `intothe sockets foreign to those constituting the product of agglomeration.In this case by reason of the additional pressure to that for which theexterior pressure of the exhaust valve M in the casing of the valve Khas been calculated, the valve M is raised allowing the water in thehydraulic cylinder to escape and the lower pressure plunger D descendsinstead of rising, at the same time as the hydraulic piston A to whichit is xed. Under these conditions at the moment when the generalmovement carries the fulcrum of the lever g from e to E, the hydraulicpiston A working in aspiration, provides, at the time of this aspirationthe opening of the valve L of the casing of the valve K, and by thismethod `refills the cylinder N replacing` also the water which thepiston A has accidentally evacuated, and which without the apparatusdescribed would be detrimental to the ordinary rigid press driven by theordinary mechanical means and devoid of flexibility.

What I claim is :-y l

A double compression press comprising a fixed support, a rotary mouldtable, an operating lever pivoted on said support, a compression plungerpivotally connected to the operating lever, an ejector plunger alsopivotally connected to said lever, a second compression plunger arrangedto move in the opposite direction to the first, a rod and leverconnecting the second compression plunger to the operating lever, ahydraulic cylinder, a piston therein, a block carried by said piston,the said connecting lever being arranged on said block, and a rotary camarranged to impart maximum speed to the tab-le during the periodsbetween compression and to hold the table against movement during theperiods of compression.

In witness whereof I aiiix my signature.

JEAN ROL.

